INGREDIENTS
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Coarse salt and ground pepper
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8 ounces ziti rigate (ridged) or other short pasta
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1 cup part-skim ricotta
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1 large egg, lightly beaten
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3/4 cup finely grated Parmesan
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1 cup shredded part-skim mozzarella
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1 jar (24 to 26 ounces) best-quality tomato sauce (about 3 1/2 cups)
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1/2 loaf Italian bread (5 ounces)
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2 tablespoons butter, melted
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2 garlic cloves, minced
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1 tablespoon sherry vinegar or red-wine vinegar
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1 tablespoon olive oil
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1 head Belgian endive, stem end trimmed, thinly sliced
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2 bunches arugula (3 1/2 ounces total), thick stems removed